lkml.org 
[lkml]   [2015]   [Oct]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    SubjectRe: [PATCH v4 00/25] dmaengine/ARM: Merge the edma drivers into one
    From
    Date
    Hi

    On 09/24/2015 01:01 PM, Peter Ujfalusi wrote:
    > Hi,
    >
    > Changes since v3:
    > - Separated the two (patch 10/11 in v2 patch 10 in v3) patch which got squashed
    > by accident for v3
    > - Added Tony's Acked-by to patch 11 (for mach-oamp2 part)

    Gentle ping on this series ;)

    --
    Péter

    > Changes since v2:
    > - devm_kasprintf format string fixed
    > - Additional patch to enable dynamic paRAM slot usage when the channel mapping
    > is supported by the eDMA module.
    > On am335x we have 256 paRAM slots and 64 DMA channels, this means that we had
    > 64 slots 'locked away' all the time. The dynamic paRAM slot logic will allow
    > us to use all 256 slots freely for any purpose.
    >
    > Changes since v1:
    > - Convert edma platform device registration to use platform_device_register_full
    > - Moved the PM callback also to the dmaengine driver - missed in v1
    > - Commit message added to:
    > ARM/dmaengine: edma: Remove limitation on the number of eDMA controllers
    > - New patch which reads the flag for the channel mapping support in one place
    >
    > Cover letter:
    >
    > with this series the edma two driver setup will be changed to have only one
    > driver to support eDMA3. The legacy edma interface will be removed and eDMA can
    > only be used via dmaengine API from this point on.
    > In order to do the merge the following improvements has been done:
    > - One driver instance per eDMA:
    > - Any number of eDMA instances are supported (both legacy and DT boot)
    > - Not relying on global variables, arrays, etc
    > - Code simplification and optimizations in several places
    >
    > This change will also help us to do bigger changes in the eDMA driver since,
    > since now we have only one driver to work with.
    >
    > The series has been tested on:
    > da850-evm (OMAP-L138)
    > - with legacy and DT boot (both eDMA0 and eDMA1 is enabled)
    > - In code swapping the eDMA instances in legacy mode to make sure the second
    > instance is handled correctly.
    >
    > am335x-evmsk
    > - DT boot
    >
    > I think this series could go via the dmaengine tree. Changes are trivial under
    > arch/arm/
    >
    > Regards,
    > Peter
    > ---
    > Peter Ujfalusi (25):
    > ARM: common: edma: Fix channel parameter for irq callbacks
    > ARM: common: edma: Remove unused functions
    > dmaengine: edma: Simplify and optimize the edma_execute path
    > ARM: davinci/common: Convert edma driver to handle one eDMA instance
    > per driver
    > ARM/dmaengine: edma: Move of_dma_controller_register to the dmaengine
    > driver
    > ARM: common: edma: Internal API to use pointer to 'struct edma'
    > ARM/dmaengine: edma: Public API to use private struct pointer
    > ARM/dmaengine: edma: Remove limitation on the number of eDMA
    > controllers
    > ARM: davinci: Use platform_device_register_full() to create pdev for
    > eDMA
    > ARM: davinci: Add dma_mask to eDMA devices
    > ARM/dmaengine: edma: Merge the two drivers under drivers/dma/
    > dmaengine: edma: Allocate memory dynamically for bitmaps and
    > structures
    > dmaengine: edma: Parameter alignment and long line fixes
    > dmaengine: edma: Use devm_kcalloc when possible
    > dmaengine: edma: Cleanup regarding the use of dev around the code
    > dmaengine: edma: Use dev_dbg instead pr_debug
    > dmaengine: edma: Use the edma_write_slot instead open coded
    > memcpy_toio
    > dmaengine: edma: Print warning when linking slots from different eDMA
    > dmaengine: edma: Consolidate the comments for functions
    > dmaengine: edma: Simplify the interrupt handling
    > dmaengine: edma: Move the pending error check into helper function
    > dmaengine: edma: Simplify and optimize ccerr interrupt handler
    > dmaengine: edma: Read channel mapping support only once from HW
    > dmaengine: edma: Rename bitfields for slot and channel usage tracking
    > dmaengine: edma: Dynamic paRAM slot handling if HW supports it
    >
    > arch/arm/Kconfig | 1 -
    > arch/arm/common/Kconfig | 3 -
    > arch/arm/common/Makefile | 1 -
    > arch/arm/common/edma.c | 1876 ---------------------------------
    > arch/arm/mach-davinci/devices-da8xx.c | 122 +--
    > arch/arm/mach-davinci/dm355.c | 40 +-
    > arch/arm/mach-davinci/dm365.c | 25 +-
    > arch/arm/mach-davinci/dm644x.c | 40 +-
    > arch/arm/mach-davinci/dm646x.c | 44 +-
    > arch/arm/mach-omap2/Kconfig | 1 -
    > drivers/dma/Kconfig | 1 -
    > drivers/dma/edma.c | 1569 ++++++++++++++++++++++++---
    > include/linux/platform_data/edma.h | 101 --
    > 13 files changed, 1523 insertions(+), 2301 deletions(-)
    > delete mode 100644 arch/arm/common/edma.c
    >



    \
     
     \ /
      Last update: 2015-10-06 08:41    [W:4.203 / U:0.048 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site